A very small gain in efficiency, it changes the way the marker sounds, and that's about it. To be honest your money can be best spent elsewhere.

Exactly. I would say though that the L7 bolt with a stock board will significantly reduce the sound signature, which is already quite low with the stock bolt. But that's it.

I honestly put one in my SP-1 only because when I turned my SP-8 internals into EOS internals I could not use the L7 bolt with that set-up anymore, so I got a new bolt stop and put it in my SP-1 instead. It was either that or the L7 sitting in my spare parts bin.

But YES you do keep the "anti-chop tech". I can shoot the most brittle of tourney paints (like Draxxus Gold) at full-auto and get 0 chops or breaks. Quite an amazing feat for a gun with no eyes.

I changed my SP1 to the Deadlywind bolt because the stock bolt assembly got all scratched and threaded because of a fitting scratching it inside while I unscrewed it. The DW bolt assembly has a narrower profile and it doesn't scrape along the screw (banjo fitting). I got the new bolt for the same price as sending my gun to Smart Parts for repair, just to keep a stock gun... talk about lame service.

It is my understanding the bolt would never scrape. It rides on the oring, and never touches metal. SP1's work just like Ion, see animation below. Most bolt scratches come from debris I would guess. Sean could answer better.

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"Socialist Governments traditionally do make a financial mess. They always run out of the other peoples money" Margret Thatcher.

He i writing about the bolt sleeve not the bolt. It does get sratched to **** when you take it out as it does on mine and his and maybe 40% of other
sp-1's. Sean claims to not know what we are talking about and says just send it back to smart parts.

He i writing about the bolt sleeve not the bolt. It does get sratched to **** when you take it out as it does on mine and his and maybe 40% of other
sp-1's. Sean claims to not know what we are talking about and says just send it back to smart parts.